primitivus: bracketed paste mode is now detected

frontends/src/primitivus/primitivus

@@ -301,6 +301,7 @@ class PrimitivusApp(QuickApp, InputHistory):
 
         # we already manage exit with a_key['APP_QUIT'], so we don't want C-c
         signal.signal(signal.SIGINT, signal.SIG_IGN)
+        self._bracketed_paste = False
 
     @property
     def visible_widgets(self):
@@ -377,6 +378,33 @@ class PrimitivusApp(QuickApp, InputHistory):
             not isinstance(input_[0], tuple) and #      or other things result in several chars at once
             not 'window' in input_[0]):          #      (e.g. using Primitivus through ssh). Need some testing
                                                  #      and experience to adjust value.
+            if input_[0] == 'begin paste' and not self._bracketed_paste:
+                log.info(u"Bracketed paste mode detected")
+                self._bracketed_paste = True
+
+            if self._bracketed_paste:
+                # after this block, extra will contain non pasted keys
+                # and input_ will contain pasted keys
+                try:
+                    begin_idx = input_.index('begin paste')
+                except ValueError:
+                    # this is not a paste, maybe we have something buffering
+                    # or bracketed mode is set in conf but not enabled in term
+                    extra = input_
+                    input_ = []
+                else:
+                    try:
+                        end_idx = input_.index('end paste')
+                    except ValueError:
+                        log.warning(u"missing end paste sequence, discarding paste")
+                        extra = input_[:begin_idx]
+                        del input_[begin_idx:]
+                    else:
+                        extra = input_[:begin_idx] + input_[end_idx+1:]
+                        input_ = input_[begin_idx+1:end_idx]
+            else:
+                extra = None
+
             log.debug(u"Paste detected (len {})".format(len(input_)))
             try:
                 edit_bar = self.editBar
@@ -389,7 +417,9 @@ class PrimitivusApp(QuickApp, InputHistory):
                 pos = edit_bar.edit_pos
                 edit_bar.set_edit_text(u'{}{}{}'.format(edit_bar.edit_text[:pos], buf_paste, edit_bar.edit_text[pos:]))
                 edit_bar.edit_pos+=len(buf_paste)
+            if not extra:
                 return
+            input_ = extra
 
         for i in input_:
             if isinstance(i,tuple):